private ImageInfo SaveImage(HayStackStoreFile storeFile, string image)
{
var data = File.ReadAllBytes(image);
var tobesaved = new Needle
{
Key = 1L,
AlternateKey = 1,
Cookie = 1,
Data = data,
DataCheckSum = 1,
DataSize = data.Length,
Flags = 0,
FooterMagicNumber = 0,
HeaderMagicNumber = 0,
Padding = 0
};
var offset = storeFile.Append(tobesaved);
return new ImageInfo
{
Offset = offset,
Size = data.Length
};
}
public void Should_read_and_create_new_image_file()
{
File.Delete(StoreFile);
if (Directory.Exists(TargetDir))
{
Directory.Delete(TargetDir, true);
}
Directory.CreateDirectory(TargetDir);
var storeFile = new HayStackStoreFile(StoreFile);
var image1Info = SaveImage(storeFile, Path.Combine("images", Image1));
var image2Info = SaveImage(storeFile, Path.Combine("images", Image2));
storeFile.Close();
var anotherStoreFile = new HayStackStoreFile(StoreFile);
var needl1 = anotherStoreFile.Read(image1Info.Offset, image1Info.Size);
var needl2 = anotherStoreFile.Read(image2Info.Offset, image2Info.Size);
File.WriteAllBytes(Path.Combine(TargetDir, Image1), needl1.Data);
File.WriteAllBytes(Path.Combine(TargetDir, Image2), needl2.Data);
anotherStoreFile.Close();
}
public void Should_able_to_retrieve_with_offset()
{
File.Delete("photos.bin");
var storeFile = new HayStackStoreFile("photos.bin");
var data = new byte[10000];
var tobesaved = new Needle
{
Key = 1L,
AlternateKey = 1,
Cookie = 1,
Data = data,
DataCheckSum = 1,
DataSize = data.Length,
Flags = 0,
FooterMagicNumber = 0,
HeaderMagicNumber = 0,
Padding = 0
};
var offset = storeFile.Append(tobesaved);
var needle = storeFile.Read(offset, data.Length);
Assert.AreEqual(tobesaved.Key, needle.Key);
Assert.AreEqual(tobesaved.AlternateKey, needle.AlternateKey);
Assert.AreEqual(tobesaved.Cookie, needle.Cookie);
Assert.AreEqual(tobesaved.Data.Length, needle.Data.Length);
Assert.AreEqual(tobesaved.DataCheckSum, needle.DataCheckSum);
Assert.AreEqual(tobesaved.DataSize, needle.DataSize);
Assert.AreEqual(tobesaved.Flags, needle.Flags);
Assert.AreEqual(tobesaved.FooterMagicNumber, needle.FooterMagicNumber);
Assert.AreEqual(tobesaved.HeaderMagicNumber, needle.HeaderMagicNumber);
Assert.AreEqual(tobesaved.Padding, needle.Padding);
storeFile.Close();
}